qemu-img: Don't leak errors when outputting JSON

If our JSON output ever encounters an error, we would just silently
leak the error object.  Instead, assert that our usage won't fail.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1465490926-28625-3-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Eric Blake 2016-06-09 10:48:33 -06:00 committed by Markus Armbruster
parent c7eb39cbd4
commit 911ee36d41

View File

@ -490,12 +490,11 @@ fail:
static void dump_json_image_check(ImageCheck *check, bool quiet)
{
Error *local_err = NULL;
QString *str;
QmpOutputVisitor *ov = qmp_output_visitor_new();
QObject *obj;
visit_type_ImageCheck(qmp_output_get_visitor(ov), NULL, &check,
&local_err);
&error_abort);
obj = qmp_output_get_qobject(ov);
str = qobject_to_json_pretty(obj);
assert(str != NULL);
@ -2181,12 +2180,11 @@ static void dump_snapshots(BlockDriverState *bs)
static void dump_json_image_info_list(ImageInfoList *list)
{
Error *local_err = NULL;
QString *str;
QmpOutputVisitor *ov = qmp_output_visitor_new();
QObject *obj;
visit_type_ImageInfoList(qmp_output_get_visitor(ov), NULL, &list,
&local_err);
&error_abort);
obj = qmp_output_get_qobject(ov);
str = qobject_to_json_pretty(obj);
assert(str != NULL);
@ -2198,11 +2196,11 @@ static void dump_json_image_info_list(ImageInfoList *list)
static void dump_json_image_info(ImageInfo *info)
{
Error *local_err = NULL;
QString *str;
QmpOutputVisitor *ov = qmp_output_visitor_new();
QObject *obj;
visit_type_ImageInfo(qmp_output_get_visitor(ov), NULL, &info, &local_err);
visit_type_ImageInfo(qmp_output_get_visitor(ov), NULL, &info,
&error_abort);
obj = qmp_output_get_qobject(ov);
str = qobject_to_json_pretty(obj);
assert(str != NULL);